GPT-5.6 Terra API
LLMGPT-5.6 Terra is the middle-priced 5.6 route, retaining the same listed 1M context, vision, and tool use.
- Input · USD / 1M tokens$0.3 USDOfficial price
$2 USD - Output · USD / 1M tokens$1.8 USDOfficial price
$12 USD - Savings85%
- Context1M
- Last verified2026-07-22
- View tool pricing and billing rules
What are we making today?
Bring an idea, a question, or a first draft.
01
Where it fits
GPT-5.6 Terra is the middle-priced 5.6 route, retaining the same listed 1M context, vision, and tool use.
Choose Terra when you want a 5.6 model between Sol and Luna on listed token price.
02
Model capabilities
Vision
Accepts visual input alongside text for multimodal coding and analysis tasks.
Tool use
Can select and call tools in agent workflows that support structured tool use.
03
OpenAI-compatible API
Keep your client and change the base URL, API key, and model ID.
curl https://api.omniakey.com/v1/chat/completions \
-H "Authorization: Bearer $OMNIAKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-terra",
"messages": [{"role": "user", "content": "Explain this codebase"}],
"stream": true
}'04
Compatible coding tools
More OpenAI models
Frequently asked questions
How much does GPT-5.6 Terra cost on OmniaKey?
OmniaKey charges $0.3 USD per 1M input tokens and $1.8 USD per 1M output tokens, in USD. Official prices are $2 USD and $12 USD; you save 85%.
What is the context window for GPT-5.6 Terra?
The listed context window is 1M. Actual usable limits can also depend on the client and upstream request format.
Which coding tools work with GPT-5.6 Terra?
The current catalog lists compatibility with Codex, Cursor, Cline, Aider. Use the model ID shown on this page when the client supports model selection.